ul li{
	list-style: none;
}
.header{ 
	background:#222222;
	color:#fff;
}
/*内容*/
.content{
	min-height:600px;
}
.sidebar{
	
}

.footer{
	position:relative;
	top: 0;
	left:0;
	right:0;
	height:100px; 
	padding:20px 0;
	background:#434343;
	color:#fff;
	margin:0 auto;
}
